Spectral imaging at high definition and high speed in the mid-infrared.

ABSTRACT: Spectral imaging in the mid-infrared (MIR) range provides simultaneous morphological and chemical information of a wide variety of samples. However, current MIR technologies struggle to produce high-definition images over a broad spectral range at acquisition rates that are compatible with real-time processes. We present a novel spectral imaging technique based on nondegenerate two-photon absorption of temporally chirped optical MIR pulses. This approach avoids complex image processing or reconstruction and enables high-speed acquisition of spectral data cubes (xyω) at high-pixel density in under a second.

SUBMITTER: Knez D 

PROVIDER: S-EPMC9668290 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature